diff --git a/device/rockchip/common/init.connectivity.rc b/device/rockchip/common/init.connectivity.rc

index 4957cdb..15c507e

--- a/device/rockchip/common/init.connectivity.rc

+++ b/device/rockchip/common/init.connectivity.rc

@@ -, +, @@ on boot

 # bluetooth power up/down interface

     chmod  /dev/ttyS0

-    chmod  /dev/ttyS1

+#   chmod  /dev/ttyS1

     chmod  /dev/vflash

     chown bluetooth net_bt_stack /dev/vflash

-    chown bluetooth net_bt_stack /dev/ttyS1

+#   chown bluetooth net_bt_stack /dev/ttyS1

     chown bluetooth net_bt_stack /dev/ttyS0

     chown bluetooth net_bt_stack /sys/class/rfkill/rfkill0/type

     chown bluetooth net_bt_stack /sys/class/rfkill/rfkill0/state

diff --git a/device/rockchip/common/init.rk30board.rc b/device/rockchip/common/init.rk30board.rc

old mode

new mode

index 2cfcbb8..

--- a/device/rockchip/common/init.rk30board.rc

+++ b/device/rockchip/common/init.rk30board.rc

@@ -, +, @@ on post-fs-data

     chown root system /system/lib/hw/gps.default.so

     mkdir /data/gps  system net_bt_stack

+    chmod  /dev/ttyS1

+    chmod  /dev/ttyS3

+    chmod  /dev/ttyS4

+

     ##$_rbox_$_modify_$_chenzhi_20120309

     ##$_rbox_$_modify_$_begin

     mkdir /data/misc/ppp  system system

diff --git a/kernel/arch/arm/boot/dts/rk3288_rk808.dts b/kernel/arch/arm/boot/dts/rk3288_rk808.dts

index fbfcf2b..4c4dfd9

--- a/kernel/arch/arm/boot/dts/rk3288_rk808.dts

+++ b/kernel/arch/arm/boot/dts/rk3288_rk808.dts

@@ -, +, @@

        pinctrl- = <&uart0_xfer &uart0_cts>;

 };

+&uart_bb {

+       status = "okay";

+       dma-names = "!tx", "!rx";

+       pinctrl- = <&uart1_xfer &uart1_cts>;

+};

+

+&uart_gps {

+       status = "okay";

+       dma-names = "!tx", "!rx";

+       pinctrl- = <&uart3_xfer &uart3_cts>;

+};

+

+&uart_exp {

+       status = "okay";

+       dma-names = "!tx", "!rx";

+       pinctrl- = <&uart4_xfer &uart4_cts>;

+};

+

 &i2c0 {

        status = "okay";